Requesty
Fireworks AI

glm-5.1

GLM 5.1 is Z.ai's next generation flagship model built for agentic engineering, with stronger coding capabilities and sustained performance over long horizon tasks with hundreds of iteration rounds. It's a 754B parameter MoE model.

🔧Tool calling⚡Caching
Try glm-5.1CompareDocs

Specifications

Context window202K tokens
Max output25K tokens
API typechat
AddedApr 29, 2026
Model IDfireworks/glm-5.1
Data retentionNo
Used for trainingNo
Provider location🇺🇸 US
Privacy policyFireworks Privacy Policy →

Benchmarks

Benchmarks haven't been published yet for this exact variant.

Some variants (region-specific deployments, highspeed tiers) share benchmarks with their base model — check the base model page or the Fireworks AI models overview.

Pricing

Input / 1M
$1.40
Output / 1M
$4.40
Cache write
—
Cache read / 1M
$0.26
Estimated cost
100K input + 10K output$0.18
1M input + 100K output$1.84
10M input + 1M output$18.40

Requesty charges exactly what the upstream provider charges — no markup, no per-request fees. Prompt caching and smart routing can reduce effective cost by 30-80%.

Quickstart

Drop-in compatible with the OpenAI SDK. Change the base URL, swap in your Requesty API key, and set the model to fireworks/glm-5.1.

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from openai import OpenAI

client = OpenAI(
    api_key="YOUR_REQUESTY_API_KEY",
    base_url="https://router.requesty.ai/v1",
)

response = client.chat.completions.create(
    model="fireworks/glm-5.1",
    messages=[
        {"role": "user", "content": "Explain quantum computing in one paragraph."},
    ],
)

print(response.choices[0].message.content)

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1M ctx$1.74/1M
kimi-k2.6
262K ctx$0.95/1M
minimax-m2.5
197K ctx$0.30/1M
glm-5
203K ctx$1.00/1M

Frequently asked questions

How much does glm-5.1 cost?
glm-5.1 is priced at $1.40 per million input tokens and $4.40 per million output tokens when accessed via Requesty. Prompt caching is supported, which can cut effective input cost by up to 90% on repeated context. Requesty charges exactly what the upstream provider charges — we don't add markup.
What is the context window of glm-5.1?
glm-5.1 has a context window of 202K tokens, with a maximum output of 25K tokens per response. That's roughly 269 words of input you can fit in a single prompt.
What can glm-5.1 do?
glm-5.1 supports tool calling, prompt caching. You can call it through any OpenAI-compatible client by pointing base_url to Requesty.
How do I use glm-5.1 with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "fireworks/glm-5.1". The Quickstart above shows Python, JavaScript and cURL snippets.

Access glm-5.1 through Requesty

One API key, 400+ models, OpenAI-compatible. No markup on provider prices, automatic failover, and smart caching built-in.

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